Ideapad Flex 2-14D: Fan constantly running at high speed: Windows 8.1

Hello. I have an Ideapad Flex 2-14D running Windows 8.1 and actual drivers.The fan runs constantly at high speed. So I have not to complaint about overheating, but instead I have to complaint about getting cold knees. Is there a possiblity to adjust fan speed? Best regards Eleichstetten

I've tried SpeedFan and looked through all the Lenovo programs, but there's no way that I can find for tuning the fan. My ghetto hack is to limit the CPU to 70% max (with Passive as the cooling scheme), which keeps the fan well under control.
Fan adjustment should be a standard feature in 2015. It's not expensive and definitely not difficult to implement.

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